/*
 * Copyright 2017 ABSA Group Limited
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package za.co.absa.spline.common

object TypeConstraints {

  // Encoding for "A is not a subtype of B"
  trait !<:[A, B]

  type not[T] = {type λ[U] = U !<: T} //NOSONAR

  // use ambiguous method declarations to rule out excluding type conditions
  implicit def passingProbe[A, B]: A !<: B = null //NOSONAR

  implicit def failingProbe1[A, B >: A]: A !<: B = null //NOSONAR

  implicit def failingProbe2[A, B >: A]: A !<: B = null //NOSONAR
}
